Dispensing device



May 24, 1932. A. E. PAYSON ET AL DI SPENSING DEVICE Filed Feb. 26, 1929 Patented May 24, 1932 UNITED STATES P TENT O F-m AURIN E. PAYsoN AND MINER P. WETMORE, or nonwrornconnncmrcnr msrnnsme DEVICE Originalapplication filed. April 6, 1928, Serial No. 268,013. Dividedand this application filed. February 26, 1929. Serial No. 342,711. a a a J Our invention is for areceptacle of novel construction particularly adapted for cooling and dispensing beverages. One feature of our new apparatus comprises a doubley walled vacuum jar, preferably of pyrex glass,

having a double-walled pipe through which the contents pass out. This pipe consists of a pair of tubes attached, respectively, to the inner and outer walls of the jar. WVhen the 0 two containers or cylinders of the jar are assembled, the two tubes are in concentric spaced relation and are sealed at their outer ends. In this way, the double-walled pipe forms a tubular continuation of the annular vacuum chamber between the walls of the jar. ner tube has a lateral bend adapted to take up. movements of the glass walls under changes of temperature.

larly suitable for devices in which refrigerated beverages are'dispensed.

In order to explain our invention solthat its varlous features and advantages may be fully understood, we have selected several embodiments for illustration and description. 7 In the accompanying drawings- Fig. 1 shows a cross-sectionalview of a cylindrical vacuum jar constructed in accordance with our invention;

bottom of the jar in a manner well un'derstood by those familiar with glassware of Jars of large size (say, of 5-'gal-.

that kind. lon capacity or more) are preferably made of pyrex glass, so that they can be handled and used more safely. From the spherical In one form of our invention, the in The glass jar may 0 be cylindrical or sphericaLfiand is particuglasslpipe consisting of an inner tube 21'at-.

tached to the inner wall 14 and an outer tube 22 attached to the outer wall 15. The tubes 21 and 22 are fused at their inner ends to the walls of the jar, so that the double-walled pipe thus formed is an integralrtubular extension of the body of the jar. The concentric tubes 21 and 22fare fused together at their outer ends to make an airtight seal, and the passage 23 formed by the inner: tube21 is open to the interior of the jar. -In other words, the double-walled pipe 2l.22 forms an outletfor the jar. Thev annular space 24 between the tubes 21 and 22 is a continuation of the annular chamber 16 between the walls of thejar, so that theinner tube 21 through which the liquid flows is 'heat-insulat'ed'by a vacuumfrom the outer tube 22 (except at the sealedtip). t

. In the practical construction of the denble-wa'lled glass jar 10, the outer and inner" walls are formed'separately in molds, but

withoutthe tubular, extensions21 and 22;

The'glasstubes' 21 and 22 are then fused to the rounded bottoms of the inner and outer I containers 14 and 15., In assembling thejar, the inner container-is inserted intothe outer container, with the inner tube 21 passing into the outer tube 22. Spacing pads 25 of asneck 27 byfusionof the'glass, and the outer};

ends of the tubes 21 and 22 are sealed at 28in the same way; Or, the outer tube may be fused tothei outer container 15 after the latter has been positioned over the innercontainer, and the two containers fused at-the neck 27 and at the discharge end 28. It'is immaterial which of the sealed joints 27 and "28 is. made first. The jar 10 being thus completed, thevacuum chamber 16 and its tubular-continuation 241are connected to ayao- .u'um pumpthroughthe tipl'Z.

In the modified form of glass-j ar'shown'in 'Figs. 2 and 3, theinner' tube i21'hasfag-lat- 50 bottom 18 of the jar extendsa double-walled eral U-shaped bend 29 which automatically inc bestos or other non-conducting material hold E" i room for the lateral bend 29 of tube .21, the rounded base of the inner container 14in Eiga 2arequires considerable spacingwfroma thebottom 18 of the outer contain'e:r;15;-;,0rdinary spacing pads like 25 in Fig. 1 Will not do, and we therefore" provide a tripod a1 ran'g'ement comprising "three-brass tubes 30 rigidly connected' by-}rods 31 and: carrying at 'thei'r ends he at insul'ztting pads 32, which may 'bepieces of asbestos, cork, and the like.

The rods 30 ac't like braces 'b'etween the rounded-bottomssoif the containers l4 and 15, so that the annular "chamber 16 may beexhausted without danger 'ofbreaking or pull:

ing down the--base= of-the inner container.

Theispacing of rodsi30 issue-h that the tripod is easil y inserted in place without hindrance :by: "the lateral bend 29. In assembli-n'g' the jar; ithe' inner container is supported in inverted positio'n, the bent tube 21is fused in pilace, the tripod 30 is then-placed on the base ofthe inverted container, then the outer-container '15 'with tube 22 -is inserted over the inner container, whereupon the jar-:is sealed at the neck and at the diseh-arge endof tubes 2%22'. Otherwisewvhat has been said about iFigal applies to thejar f F-igsz 2 and 3'.

' Fig-:4 illus'trates anotheryembodiment of "our' ne w receptacle: Here-"we' have doublewalled vac-uuni j 'ar f 32 comprisinga substantiallry spherical or g lob'eshaped body -'33, a cylindrical'neck 34; and a double-walled dischargeipipe 3'5,='which is here shown: as taper 'ingor conical; Th'e inner -wall 36 is' formed at fone: end with a; cylindrical extension -37, and: at the other-end with' a conical extension B81 The -outer w-all 39- hias a cylindrioalextension-'40 on top and a taperin-g extension 41 at the bottom. The cylindrical =extensions and 40 'a-re sealed at=42andfornr the doubie w'alled n'eck The co11 ica'l extensions 38 and" 41 are 'sea'l'ed' at 43 and iforin the donbl'e-wal led fconical p'i pe or "tube throu'gh which-*Ithe :contentsiof thejar pass out. The spherical walls of Ejar 32 are spaced by two sets of pads 44, which are usually' of asbestos and "held*togethhrsbya-Wirei451 f Anreassyyway to assemble thei'partsrof jar 32Eis this: The innerzandwouterwa'll's 36 and (so .39 ware blown separately in suitable molds, with the integral extensions -37-40 I and 38 4lfrespgectively. ,T-he' next step is to crack the outerrbu'lb-39 transverselyacross the center.46. The upper half offbulb 39 is now inserted over the top of the inner part 36,

tageous' inf] ars "oflarge' capacity. 'T'o"make- 'notperfectly smooth,'thatmatters not in the least The jar 32, like the jar 10 of Figs. 1 and 2, is preferably made of pyrex glass, or

otheiyglass :c ap ableof standing up under :con di tionsot actual use. The spherical shape of the bottle or ar 32 gives it unusual strength. Thedoub'le-walled-discharge pipe=35 need not be conical, but may obviously be cyli-ndri call.

- In .the' basic aspect of our invention, the

double-walled v'acuum .j ar with its =doublewalled discharge pipe mayrbe putito an; practicalusex N'o -support for the jarhas been shown, 'b'ecau'seth'a t isinot .part of this invention; Although weh'avesh'own.and'described certain specific constructions, it should be understood that ithis invention .is not limited 'tov any of the: details set forth iun less 'so'specified infith'e cla'imsv Thisapplic'ationi is aidi- 'VlSl'OIlSEOf :our 'copending case Serial Number 268,013,6filed April 6-, 1928.1

' Weiclaim :as-ouriinven'tion:

1. A double-Walled vacuuin jar of glass open at'the-"top and provided :at athe bottom with-as double-walled discharge -pipe :of glass integral with the body of the jar, theinn'er tube of said double walled pipe communicating with the interiorofithe .j ar' andrbeingaiopen toitheaoutside; I

2. .A double-walledvacuum. jar :havingra double-walled pipe extending therefrom," said pipe consiisting. sof 'an inner tubevatta'ched'ato the inner Wall of'lthe .tjarzand an :outer tube attached to f'theouter wall of the .j ar; saidi'inner tube beingi'openlto 'the inside of the ar and having a lateral bend.:arra.nged'in: the

vacuum chamber ofthezjarrthe outer ends of said itu bes being connected in :a. sealed joint, and a bracing.'deviceiarranged around said inner tubeiln' the vacuum chamber, sald bracingtube engaging the base portion o fithe 1111161" and outercyll'nders of saidar.

3. A double-Walled vacuumreceptaclehaving-a mouth for filling the same andadoublewalled extension forming 'a discharge: opening for the contents ofthe receptacle',':the space between thewalls-of said extension ":be-

ing open to'the vacuum ichamber'of the,=recep- .tac'le.

4.- Ar double-walled vacuum receptacle of glass having andouble-walled tubular extension. opposite the mouth ofthereceptacle and the receptacle.

tached to the inner wall of the jar and an outer tube attached to the outer wall of the jar, said inner tube being open to the inside of the jar and having a lateral bend arranged in the vacuum chamber of the jar, the outer ends of said tubes being connected in a sealed joint.

7. A double-walled vacuum jar of glass comprising a spherical body having two double-walled extensions diametrically arranged, said extensions constituting inlet and outlet pipes open to the exterior and to the interior of the body, the outer ends of the walls of said extensions being sealed and the space between the sealed walls of said extensions being a continuation of the space between the walls of said spherical body.

8. A double-walled vacuum ar comprising a spherical body having a cylindrical neck on top and a conical tube at the bottom, said neck and said tube being open to the outside and to the interior of the body, the double wall of said jar extending from the top of the neck to the bottom of said tube, so that the vacuum chamber between the walls surrounds the inner wall of the cylindrical neck and the inner Wall of the conical tube.

9. A double-walled vacuum jar having a substantially spherical bottom from the center of which extends a double-walled pipe, said discharge pipe open to the outside of the ar, consisting of an inner tube attached to the round bottom of the inner wall of said jar and an outer tube attached to the round the top and provided at the bottom with a double-walled discharge pipe, and a sealed exhaust tip projecting from said jar lndependently of said pipe. A

12. A double-walled vacuum receptacle comprising a spherical body open at the top and provided at the bottom with a doublewalled discharge pipe, said spherical body having a sealed exhaust tip at a distance from said pipe.

' AURIN E. PAYSON.

MINER P. WETMORE.

bottom of the outer Wall of said jar, said inner tube being open to the inside of the jar and the outer ends of said tubes being connected in a sealed joint.

10. A double-walled vacuum jar of glass comprising a substantially spherical body provided with a neck at the top, a doublewalled glass pipe extending from the bottom of said spherical body, said pipe consisting of a pair of concentric spaced tubes carried by the inner and outer walls of the jar, theinner tube being open to the interior of the jar and the outer ends of the tubes being fused together in a sealed joint, whereby said double-walled pipe constitutes an open tubular continuation of the annular vacuum chamber of the jar.

11. A double-walled vacuum jar open at 

